#pragma once
#include<stdio.h>
#include<assert.h>
#include<string.h>
#include<stdlib.h>
struct PeInfo
{
	char name[20];
	int age;
	char tel[20];
};
struct Contact
{
	struct PeInfo data[100];
	int sz;
};
void InitContact(struct Contact* pc);
void AddContact(struct Contact* pc);
void DelContact(struct Contact* pc);
void SeachContact(const struct Contact* pc);
void ModifyContact( struct Contact* pc);
void ShowContact(const struct Contact* pc);
void SortByAge(struct Contact* pc);









